Four sided alarm unit with an upper infrared sensor and a...

Details Four sided alarm unit with an upper infrared sensor and a... Four sided alarm unit with an upper infrared sensor and a...

2000-10-13

2001-06-12

Jackson, Marcus A. (Department: 2911)

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

Design Patent

active

D0443542

CLAIM:
The ornamental design for a four sided alarm unit with an upper infrared sensor and a lower light emitting diode, as shown and described.

REFERENCES:
patent: D. 339107 (1993-09-01), Van Genechten
patent: D. 425811 (2000-05-01), Dohrmann

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